From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 13EFAC55164 for ; Thu, 30 Jul 2026 14:37:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2A80610E177; Thu, 30 Jul 2026 14:37:39 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="2lKcDP7D"; dkim-atps=neutral Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id D1C0110E177 for ; Thu, 30 Jul 2026 14:37:37 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id C8E7F412A4; Thu, 30 Jul 2026 14:37:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 24A1B1F000E9; Thu, 30 Jul 2026 14:37:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1785422256; bh=u2qd8ui/mkACos4NHOo9K4PLC8jN/OMY62V2x80O+xw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=2lKcDP7D4dVhG1iSB7x1q8t+aJvK9AkN2r3AvcUycZtcDiuvCTE1rvMz04n3inImU iymZjJ8rlYF5cdmsXlGyV4HG7ANa2GhMtOHxByvdDrWTtBtib6Ew/3NjUjGcpvVsq+ CdohL737l7J7TdltF23PVkDTBpaER8RoV37UJsNY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thomas Zimmermann , Javier Martinez Canillas , dri-devel@lists.freedesktop.org Subject: [PATCH 7.1 378/744] drm/sysfb: Do not page-align visible size of the framebuffer Date: Thu, 30 Jul 2026 16:10:51 +0200 Message-ID: <20260730141452.321656098@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260730141444.267951807@linuxfoundation.org> References: <20260730141444.267951807@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 7.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thomas Zimmermann commit 134844856c399bfa9462a159dcf860bfdb748055 upstream. Only return the actually visible size of the system framebuffer in drm_sysfb_get_visible_size_si(). Drivers use this size value for reserving access to framebuffer memory. Increasing the value can make later attempts to do so fail. Signed-off-by: Thomas Zimmermann Fixes: 32ae90c66fb6 ("drm/sysfb: Add efidrm for EFI displays") Fixes: a84eb6abe2b6 ("drm/sysfb: Add vesadrm for VESA displays") Reviewed-by: Javier Martinez Canillas Cc: Thomas Zimmermann Cc: Javier Martinez Canillas Cc: dri-devel@lists.freedesktop.org Cc: # v6.16+ Link: https://patch.msgid.link/20260618084327.46567-2-tzimmermann@suse.de Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c +++ b/drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c @@ -67,7 +67,7 @@ EXPORT_SYMBOL(drm_sysfb_get_stride_si); u64 drm_sysfb_get_visible_size_si(struct drm_device *dev, const struct screen_info *si, unsigned int height, unsigned int stride, u64 size) { - u64 vsize = PAGE_ALIGN(height * stride); + u64 vsize = height * stride; return drm_sysfb_get_validated_size0(dev, "visible size", vsize, size); }